Some states award delegates to candidates on a winner-take-all basis, meaning that the candidate with the most votes in a state is awarded all of that state's delegates. Other states award delegates in proportion to each candidate's share of the primary vote.
Provocative angiography involves a full diagnostic angiogram followed by administration of intra-arterial procoagulant agents to identify an occult bleeding source in patients who have normal test results after lower gastrointestinal bleeding.
Sometimes, one type of echocardiography, transthoracic echocardiography (TTE), using a probe positioned on the chest, will be normal and transesophageal electrocardiography (TEE) will be needed to detect the problem. Echocardiography has also been helpful in detecting cases where the outside lining of the heart is infected (pericarditis).